Device for preheating hydrocarbons in carbureters.



1 R. E. KRAUSEL DEVICE FOR PREHEATING HYDROCARBONS IN CARBURETERS. APPLICATION TILED JAN. 4, I913 RENEWED JAN. 25.1915. 1,135,195. Patented Apr. 13, 1915.

I 412E222:,2 21,222 E. 1 a1 BEST AvAaAeLEcoP? RICHARD-11.;KRAUSE;QYIDETROTT,-MICHTGAN, ass enon TO KRAUSE MANUFACTUR- f0]? IDE'JJROI'I MICHIGAN, A CORPORATION OF MICHIGAN.

Damon so id rant- EATING nrnno'cannons IN cannnanrnns.

Application filed January 4, 1913, Serial no. 740,11

To all whom may concern. .Be it known that I, RICHARD E KRA sn,

as ubie ct cranking-bf Sweden, 'residinggat Detroit, in the county of \Vayne'and State of Michigan, have invented certain new and useful Im rovements. in Devices for Preheating ydrocarbons in Carbureters, of which the following is a specification, reference being bad therein to the accompanying drawings. In the-operation of carbureters or fuel vaporizing devices in cold weather it is diflicult to obtain the proper mixtures oftentimes on account of low temperature of the fluid. I v This invention relates to a heating device:

.that can be applied directly to acarbureter whereby the contents of the fuel holding chamber of the carbureteris heated bydirect contact with a heating member of the device and is rapidly raisedto that pointat which the fuel vaporizes readily.

The invention also includes an arrangement ofthe parts which enables it to with- 7 or the like.

stand rough-usage without injury. v

The invention consists in the' matters hereinafter set forth and more particularly pointed out in the appended claims. In the drawings, Figure 1 is a view in longitudinal section of a device that em bodies features of the invention applied to the wall of a carbureter, the view being greatly enlarged to-show the details more clearly; and Fig. 2 is-a view on line IL-II of Fig. 1. j,

As herein shown, a casing 1 has an exteriorly screw-threaded nipple 2 whereby it may be readily inserted throughan opening in the wall 3 of a carbureter or the like below the level of fluid in the compartment of which the wall is a part. Preferably the nipple is proportioned so .that the device may replace a drainage plug or the like in a carbureter. The casing, which is exteriorly fitted for the application of a wrench or like turning tool, has a recess formed by a counterbore in its outer end in communication with the bore of the nipple 2. A bushing t of suitable insulating material is inserted in the nipple and a plug 5 closes the counter-bored end.

Ter inal strips 6 are embedded in the plug which is of suitable insulating material and are provid'ed'with binding screws A stem is secured to the Specification of Let ters fa'te nt Patented Apr. 13, 19.15.,

0. *Re'newed'January 25, iais. Serial No. 4,405.

' inner end ofjone of the terminalsof one of the connections 6 in concentric relation with the bush-ing e 'into-"whiclr it eXtendS. "A helic'ally disposed conductor 10,0f high resistance, as for example, German silver or the like, connects the outer end of the stem 9 with the other terminal member. The coils of the helix are so proportioned in relation to the bushing 4 that when heated and expgnded by the passage of a current they ar against the bushing and thereby hold their position and conformation without sagging. As a result of this construction any. fuel that is introduced into the chamber through whose wall the plug extends, comes into direct contact with the comparatively large surface of the resistance .coil so that when the latter is heated as by a battery or 'The device may be readily fitted to any I carbureter having a fuel chamber and if the latter be provided with a drain cock it may replace the latter.

Obviously, changes in the details of construction may be made without departing from the spirit of my invention and I do not care to limit mvself to any particular form or arrangement of parts.

What I claim is 1. Heating means for a carbureter comrising a casing with an axially apertured nipple fitted for insertion in the apertured wall of the carbureter, a plug of insulating material seated in the counterbored outer portion of the casing, an insulating bushing in the casing extending through the nipple, a pair of terminals extending through the plug, a stem connected to one of the terminals;in axial alinement to the bushing, and a helical member of high resistance connecting the outer end of tlie stem with the other terminal member, the bushing being adapted to support the turns. of the hclir when the latter is expanded by heat.

2. Heating means for a carbureter comprising a hollow casing adapted to be secured in an opening in the wall of a car-,

a tubular insulating member adapted to en- BEST AVAI'LABLE eoP'; 1,1se,1e5

connection with the Inember and lying in the bushing, the latter being adapted to be engaged by and to support the turns of the helix when the latter is heated.

In testimony whereof I afiix my signature in presenee of two witnesses; I

- RICHARD E. KRAUSE.

WVitnessesf I ANNA M. Donn,

C. Strrcxmmr.

gage and form a support for the conductor when the latter is expanded by heat.

3. The combination with the Wall of it cai-bureter, of a casing, 21 SCICWtlllGfidQd nipple on the casing adapted to engage an opening in the czu'hureter well, an insulating bushing in the bore of the nipple, an insulating plug secured in an outer counterbored recess in thecasing, a terminal mem-' ber mounted in the plug, and a helical memher of high resistance forming an electric Copies of this patent "may be obtained for five cents eech, by. addressing the coxnmissipnjeri of faten ts, Washington, new 1 '1: 4 

